llvm-svn: 112200

fix: add a flag to MapValue and friends which indicates whether
any module-level mappings are being made. In the common case of
inlining, no module-level mappings are needed, so MapValue doesn't
need to examine non-function-local metadata, which can be very
expensive in the case of a large module with really deep metadata
(e.g. a large C++ program compiled with -g).

This flag is a little awkward; perhaps eventually it can be moved
into the ClonedCodeInfo class.

llvm-svn: 112190

I think there are good reasons to change this, but in the interests
of short-term stability, make SmallVector<...,0> reserve non-zero
capacity in its constructors.  This means that SmallVector<...,0>
uses more memory than SmallVector<...,1> and should really only be
used (unless/until this workaround is removed) by clients that
care about using SmallVector with an incomplete type.

llvm-svn: 112147

and was over-complicated, and replacing it with a simple implementation.

llvm-svn: 112120

not require its type argument to be complete if no members are
actually used.

llvm-svn: 112106

trivial.

llvm-svn: 112105

llvm-svn: 112104

expanding: e.g. <2 x float> -> <4 x float> instead of -> 2 floats.  This
affects two places in the code: handling cross block values and handling
function return and arguments.  Since vectors are already widened by 
legalizetypes, this gives us much better code and unblocks x86-64 abi
and SPU abi work.

For example, this (which is a silly example of a cross-block value):
define <4 x float> @test2(<4 x float> %A) nounwind {
 %B = shufflevector <4 x float> %A, <4 x float> undef, <2 x i32> <i32 0, i32 1>
 %C = fadd <2 x float> %B, %B
  br label %BB
BB:
 %D = fadd <2 x float> %C, %C
 %E = shufflevector <2 x float> %D, <2 x float> undef, <4 x i32> <i32 0, i32 1, i32 undef, i32 undef>
 ret <4 x float> %E
}

Now compiles into:

_test2:                                 ## @test2
## BB#0:
 addps %xmm0, %xmm0
 addps %xmm0, %xmm0
 ret

previously it compiled into:

_test2:                                 ## @test2
## BB#0:
 addps %xmm0, %xmm0
 pshufd $1, %xmm0, %xmm1
                                        ## kill: XMM0<def> XMM0<kill> XMM0<def>
 insertps $0, %xmm0, %xmm0
 insertps $16, %xmm1, %xmm0
 addps %xmm0, %xmm0
 ret

This implements rdar://8230384

llvm-svn: 112101

llvm-svn: 112099

Patch by Adam Treat!

llvm-svn: 112077

llvm-svn: 112069

llvm-svn: 112042

access. rdar://8277890&7352504

llvm-svn: 111968

needed parsing for the .loc directive and saves the current info from that
into the context.  The next patch will take the current loc info after an
instruction is assembled and save that info into a vector for each section for
use to build the line number tables.  The patch after that will encode the info
from those vectors into the output file as the dwarf line tables.

llvm-svn: 111956

For now it's still a command line option, but the interface to the generic
code doesn't need to know that.

llvm-svn: 111942

which does the same thing. This eliminates redundant code and
handles MDNodes better. MDNode linking still doesn't fully
work yet though.

llvm-svn: 111941

make their protected members private. And remove an unnecessary
explicit keyword.

llvm-svn: 111915

CompilationGraph and LanguageMap definitions do not use special syntax anymore.

llvm-svn: 111862

llvm-svn: 111847

x86 int and int3 instructions.  Patch by Peter Housel!

llvm-svn: 111831

llvm-svn: 111827

llvm-svn: 111825

closing the underlying stream.

llvm-svn: 111822

PR 7920.

llvm-svn: 111820

- Cache used characters in a bitset to reduce memory overhead to just 32 bytes.
- On my core2 this code is faster except when the checked string was very short
  (smaller than the list of delimiters).

llvm-svn: 111817

- Respect find_first_of(char's From parameter instead of silently dropping it.
- Prefer std::string() to std::string("")

llvm-svn: 111814

llvm-svn: 111728

general idea here is to have a group of x86 target specific nodes which are
going to be selected during lowering and then directly matched in isel.

The commit includes the addition of those specific nodes and a *bunch* of
patterns, and incrementally we're going to switch between them and what we
have right now. Both the patterns and target specific nodes can change as
we move forward with this work.

llvm-svn: 111691

llvm-svn: 111687

It's similar to "linker_private_weak", but it's known that the address of the
object is not taken. For instance, functions that had an inline definition, but
the compiler decided not to inline it. Note, unlike linker_private and
linker_private_weak, linker_private_weak_def_auto may have only default
visibility.  The symbols are removed by the linker from the final linked image
(executable or dynamic library).

llvm-svn: 111684

not part of the IR, are not uniqued, and may be safely RAUW'd.
This replaces a variety of alternate mechanisms for achieving
the same effect.

llvm-svn: 111681

llvm-svn: 111663

llvm-svn: 111661

If the omission was intentional, please add a comment.

llvm-svn: 111657

llvm-svn: 111656

llvm-svn: 111655

outside of outs() and errs() themselves, and they don't really
need custom classes.

llvm-svn: 111642

llvm-svn: 111641

llvm-svn: 111640

class which is using it.

llvm-svn: 111639